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availability zones support for OpenStack

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allow masters, nodes and gluster nodes (within each group) to be scheduled
on differents AZ.
This commit is contained in:
rguichard 2018-07-31 11:18:27 +02:00
parent a5c165bb13
commit c19643cee2
4 changed files with 19 additions and 0 deletions
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1
contrib/terraform/openstack/kubespray.tf
View file

@ -24,6 +24,7 @@ module "compute" {
source = "modules/compute"
cluster_name = "${var.cluster_name}"
az_list = "${var.az_list}"
number_of_k8s_masters = "${var.number_of_k8s_masters}"
number_of_k8s_masters_no_etcd = "${var.number_of_k8s_masters_no_etcd}"
number_of_etcd = "${var.number_of_etcd}"

8
contrib/terraform/openstack/modules/compute/main.tf
View file

@ -102,6 +102,7 @@ resource "openstack_compute_instance_v2" "bastion" {
resource "openstack_compute_instance_v2" "k8s_master" {
name = "${var.cluster_name}-k8s-master-${count.index+1}"
count = "${var.number_of_k8s_masters}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_master}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -131,6 +132,7 @@ resource "openstack_compute_instance_v2" "k8s_master" {
resource "openstack_compute_instance_v2" "k8s_master_no_etcd" {
name = "${var.cluster_name}-k8s-master-ne-${count.index+1}"
count = "${var.number_of_k8s_masters_no_etcd}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_master}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -159,6 +161,7 @@ resource "openstack_compute_instance_v2" "k8s_master_no_etcd" {
resource "openstack_compute_instance_v2" "etcd" {
name = "${var.cluster_name}-etcd-${count.index+1}"
count = "${var.number_of_etcd}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_etcd}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -180,6 +183,7 @@ resource "openstack_compute_instance_v2" "etcd" {
resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip" {
name = "${var.cluster_name}-k8s-master-nf-${count.index+1}"
count = "${var.number_of_k8s_masters_no_floating_ip}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_master}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -204,6 +208,7 @@ resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip" {
resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip_no_etcd" {
name = "${var.cluster_name}-k8s-master-ne-nf-${count.index+1}"
count = "${var.number_of_k8s_masters_no_floating_ip_no_etcd}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_master}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -227,6 +232,7 @@ resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip_no_etcd" {
resource "openstack_compute_instance_v2" "k8s_node" {
name = "${var.cluster_name}-k8s-node-${count.index+1}"
count = "${var.number_of_k8s_nodes}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_node}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -256,6 +262,7 @@ resource "openstack_compute_instance_v2" "k8s_node" {
resource "openstack_compute_instance_v2" "k8s_node_no_floating_ip" {
name = "${var.cluster_name}-k8s-node-nf-${count.index+1}"
count = "${var.number_of_k8s_nodes_no_floating_ip}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image}"
flavor_id = "${var.flavor_k8s_node}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"
@ -305,6 +312,7 @@ resource "openstack_blockstorage_volume_v2" "glusterfs_volume" {
resource "openstack_compute_instance_v2" "glusterfs_node_no_floating_ip" {
name = "${var.cluster_name}-gfs-node-nf-${count.index+1}"
count = "${var.number_of_gfs_nodes_no_floating_ip}"
availability_zone = "${element(var.az_list, count.index)}"
image_name = "${var.image_gfs}"
flavor_id = "${var.flavor_gfs_node}"
key_pair = "${openstack_compute_keypair_v2.k8s.name}"

4
contrib/terraform/openstack/modules/compute/variables.tf
View file

@ -1,5 +1,9 @@
variable "cluster_name" {}
variable "az_list" {
type = "list"
}
variable "number_of_k8s_masters" {}
variable "number_of_k8s_masters_no_etcd" {}

6
contrib/terraform/openstack/variables.tf
View file

@ -2,6 +2,12 @@ variable "cluster_name" {
default = "example"
}
variable "az_list" {
description = "List of Availability Zones available in your OpenStack cluster"
type = "list"
default = ["nova"]
}
variable "number_of_bastions" {
default = 1
}